Well, this particular era (Great Sith War through Mandalorian Wars) is just before the first Jedi Purge. There are a LOT of Jedi in the galaxy right now, and training is a lot more decentralized. There are a great many Jedi Academies and Jedi Temples, and it isn't all centered in the big Temple on Coruscant. There are Jedi who are discovered, initiated and fully Knighted without visiting Coruscant or meeting the High Council even once.  There are even lone Masters who find and train Padawans all the way to Knighthood without the benefits of an academy at all.

The Jedi Tower on Taris is just one of many academies (an important one that is occupied and destroyed in the Mandalorian Wars; I chose it for drama).

It's an interesting time, for certain.